CC Madhya 20.117
ataeva māyā tāre deya saṁsāra-duḥkha
“Forgetting Kṛṣṇa, the living entity has been attracted by the external feature from time immemorial. Therefore the illusory energy [māyā] gives him all kinds of misery in his material existence.
When the living entity forgets his constitutional position as an eternal servant of Kṛṣṇa, he is immediately entrapped by the illusory, external energy. The living entity is originally part and parcel of Kṛṣṇa and is therefore the superior energy of Kṛṣṇa. He is endowed with inconceivable minute energy that works inconceivably within the body. However, the living entity, forgetting his position, is situated in material energy. The living entity is called the marginal energy because by nature he is spiritual but by forgetfulness he is situated in the material energy. Thus he has the power to live either in the material energy or in the spiritual energy, and for this reason he is called marginal energy. Being in the marginal position, he is sometimes attracted by the external, illusory energy, and this is the beginning of his material life. When he enters the material energy, he is subjected to the threefold time measurement — past, present and future. Past, present and future belong only to the material world; they do not exist in the spiritual world. The living entity is eternal, and he existed before the creation of this material world. Unfortunately he has forgotten his relationship with Kṛṣṇa. The living entity’s forgetfulness is described herein as anādi, which indicates that it has existed since time immemorial. One should understand that due to his desire to enjoy himself in competition with Kṛṣṇa, the living entity comes into material existence.