न वेदयज्ञाध्ययनैर्न दानै र्न च क्रियाभिर्न तपोभिरुग्रैः। एवंरूपः शक्य अहं नृलोके द्रष्टुं त्वदन्येन कुरुप्रवीर ॥

na veda-yajñādhyayanair na dānair na cha kriyābhir na tapobhir ugraiḥ evaṁ-rūpaḥ śhakya ahaṁ nṛi-loke draṣhṭuṁ tvad anyena kuru-pravīra

Nor sacrifice, nor Vedas, alms, nor works, Nor sharp austerity, nor study deep, Can win the vision of this Form for man, Foremost of Kurus, thou alone hast seen.

In plain words: Krishna says that no ritual offering, study of the Vedas (the ancient holy books), charity, good deeds or harsh self-denial can earn the sight of this form. Arjuna alone has seen it.