Beginning
Spiritually, "beginning" happens when we first start new growth -- new levels of awareness and willingness to receive goods and truths from the Lord, and use them. In the Word, "beginning" doesn't just mean the beginning of something in time. In the inner sense, it means the initial phase of a spiritual state.
John 12:35-36
35
Jesus therefore said to them, "Yet a little while the light is with you. Walk while you have the light, that darkness doesn't overtake you. He who walks in the darkness doesn't know where he is going.
36
While you have the light, believe in the light, that you may become children of light." Jesus said these things, and he departed and hid himself from them.