In the Bhagavad-gītā (9.32) the Lord says:
“O son of Pṛthā, those who take shelter in Me, though they be of lower birth-women, vaiśyas (merchants), as well as śūdras (workers)-can attain the supreme destination.”
The word pāpa-yonayaḥ means “born of lower-caste women.” The vaiśyas are merchants, and the śūdras or workers are servants. According to Vedic classifications, they belong to a lower social order. A low life means a life without Kṛṣṇa consciousness. High and low positions in society were calculated by considering a person’s Kṛṣṇa consciousness. A brāhmaṇa is considered to be on the highest platform because he knows Brahman, the Absolute Truth. The second caste, the kṣatriya caste, also know Brahman, but not as well as the brāhmaṇas. The vaiśyas and śūdras do not clearly understand God consciousness, but if they take to Kṛṣṇa consciousness by the mercy of Kṛṣṇa and the spiritual master, they do not remain in the lower castes (pāpa-yonayaḥ). It is clearly stated: te ‘pi yānti parāṁ gatim.
Unless one has attained the highest standard of life, one cannot return home, back to Godhead. One may be a śūdra, vaiśya or woman, but if one is situated in the service of the Lord in Kṛṣṇa consciousness, one should not be considered strī, śūdra, vaiśya or lower than śūdra. Though a person may be from a lowborn family, if he is engaged in the Lord’s service he should never be considered to belong to a lowborn family. The Padma Purāṇa forbids: vīkṣate jāti-sāmānyāt sa yāti narakaṁ-dhruvam. A person goes to hell quickly when he considers a devotee of the Lord in terms of birth.
Ref>> Srila Prabhupada Vani