From wiki:
"According to Meher Baba, the aim of all beings in Creation, in fact, the very purpose of Creation, is the attainment of God-realization. A soul is God-realized when it has first traversed evolution, taking each successive form in Creation until it achieves full consciousness in the human form (the terminus of physical evolution), then has gone through successive human lives during reincarnation, then traverses the inner planes of consciousness during involution. Once past the inner planes, the soul achieves consciousness of its true original identity as God."