Surah 77. Al-Mursalat, Ayah 23

The process of man's coming into being (illustrated, for instance, in {23:12-14}) clearly points to God's creative activity and, hence, to His existence. Consequently, lack of gratitude on man's part amounts to what the Qur'an describes as "giving the lie to the truth".

Perhaps the life in the womb, in relation to the life after birth, is an allegory for our probationary life on earth in relation to the eternal Life to come. Perhaps, also, our state when we are buried in the tomb suggests an allegory to the life in the womb, in relation to the life in the Hereafter.