3721. 'And this is the gate of heavens means that which serves as the ultimate degree of order, through which there is, so to speak, a way in from the natural creation. This is clear from the meaning of 'the gate' as that through which exit or entrance is made. The reason why here that which serves as the ultimate degree of order is meant is that the subject is the natural, which 'Jacob' represents. What 'a gate' means is clear from what has been stated and shown in 2851, 3187, and the fact that the natural is the ultimate degree of order from what has been introduced in 775, 2181, 2987-3002, 3020, 3147, 3167, 3483, 3489, 3513, 3570, 3576, 3671. The reason why through that ultimate degree there is so to speak a way in from the natural creation is that man's natural mind is the place through which things of heaven, that is, which are the Lord's, flow in and come down into the natural creation; and through that same mind the things that belong to the natural creation go back up, see 3702. The fact that there is so to speak an entrance from the natural creation through the natural mind into interior parts may be seen from what has been stated and shown in various places before.

[2] It seems to man as though worldly objects enter in through his physical or external senses and affect interior things, and so that there is an entrance from the ultimate degree of order into things that are within. But this is an appearance and illusion, as is evident from the general rule that what is secondary cannot flow into what is primary, or what amounts to the same, what is lower cannot flow into what is higher, or what is also the same, what is exterior into what is interior, or what is still the same, things of the world and the natural creation into those of heaven and of the spirit. For the former are grosser, the latter purer, and the grosser things that belong to the external or natural man come into being and are kept in being from those belonging to the internal or rational man. Those grosser things are unable to have any effect on the purer things but are affected by them. The nature of this influx however, seeing that appearance and illusion itself convince people that the reverse is true, will in the Lord's Divine mercy be discussed separately, where influx is the subject. This then is why it is said that through the ultimate degree of order there is, so to speak, a way in from the natural creation.

1940. That 'I will multiply your seed greatly' means the fruitfulness of the rational man when it submits itself to the controlling power of the interior man allied to good is clear from the meaning of 'seed' as love and faith, dealt with already in 1025, 1447, 1610. Here however 'multiplying seed' means the fruitfulness within the rational of the celestial things of love when the rational has submitted itself to truth that is interior or Divine. 'Being multiplied' has reference to truths but 'being fruitful' to goods, as is clear from what has been stated and shown already in 43, 55, 913, 983. But as the subject is the Lord, 'being multiplied' means being fruitful for the reason that all truth within His Rational became good and so Divine; and this is what is being referred to here. In man's case it is different - his rational is formed by the Lord from truth or the affection for truth. This affection is in him good from which he acts.

[2] As regards multiplication and fruitfulness within man's rational, this cannot be understood unless one knows about influx, regarding which the following may be said of it in general: Within everybody, as stated already, there is the internal man, the rational man, which is in the middle, and the external man. The internal man is the inmost part of him by virtue of which he is a human being and which makes him distinct and separate from animals, which do not possess that inmost part. The internal man is so to speak the door or entrance for the Lord, that is, for celestial and spiritual things that are the Lord's, to come into a person. What goes on there the individual cannot comprehend since it is entirely above his rational from which he thinks. To this inmost or internal man the rational which appears as the person's own is subordinate. Into this rational by way of that internal man flow heavenly things of love and faith from the Lord; and by way of this rational they flow on into the facts that belong to the external man. But how these things flowing in are received depends on the individual person's state.

[3] Unless the rational is submissive to goods and truths that are the Lord's this rational either stifles, or rejects, or perverts the things that flow in, the more so when they flow into facts in the memory that are derived from sensory evidence. These things when so received are meant by the seed that falls either on the pathway, or over stony ground, or among thorns, as the Lord teaches in Matthew 13:3-7; Mark 4:3-7; Luke 8:5-7. But when the rational is submissive and believes the Lord, that is, His Word, the rational is like the ground or good soil into which the seed falls and bears much fruit.