During its life, we experience ups and downs in our soul development. Ups are happy times, and downs are experienced as depression. This happens to everybody and is normal.
These cycles of development are synchronized with the planets and are guided by the planets. They are also guided by their biological rhythms and by the stages of soul development. These cycles have different lengths which usually last weeks and months.
As a human develops, it is not only the physical body that develops. While the physical body develops in physical dimension, a series of interconnected energetic bodies develop in spiritual dimensions. The etheric body is responsible for health, emotional body for emotions, mental body for thinking, astral body for connection with the spirit world, atman body is for the connection with God.
Usually, after a person recovers from depression, a new portion of the soul is connected to him/her. It is a process of continuous growth and it goes in cycles. The human soul also reconnects to the body in cycles. It is like annual circles on wood: each circle signifies a period of growth and with each circle, the tree becomes stronger. Our soul develops and strengthens in a similar pattern. Moreover, each new stage envelops all the previous stages.
It is not unusual for people to develop new qualities after recovery from depression. And sometimes, the changes are more radical when new qualities are much more pronounced. As your energy bodies develop and as your attention focuses on new subjects, you start to resonate at new frequencies and through resonance, attract new connections in the spirit world and though that connect to new past lives and new skills from these past lives. Aim high in your spiritual vibrations and be amazed how new energies become available to you when you as you develop.
As you go through the day, you accumulate experiences and during sleep or meditation, you upload your experiences to the soul. In exchange, you receive answers to your questions and solutions to your problems. Some of your problems even become resolved outside of your mind, in the external world. Indeed, sleep and meditation don't only solve problems internally, they solve the problems by actually affecting the physical world around you while you are in the dream world.
Also during sleep, the soul helps you to regenerate your physical body. It is a true symbiosis - a mutually beneficial cooperation between the physical body and the soul.
The spiritual nature of life is most pronounced at conception, birth, sleep and death - the entrance and exit points of physical world. From the material perspective, death is pretty scary, but from the spiritual perspective, death is only a part of life.