Meaning
Supreme God Krishna spoke
The forms you have just witnessed of Mine cannot be perceived through the study of the Vedas, austerities, charitable acts, or yajna. (11:53)
Sanskrit
श्रीभगवान् उवाच
नाहं वेदैर्न तपसा न दानेन न चेज्यया ।
शक्य एवंविधो द्रष्टुं दृष्टवानसि मां यथा॥
Word-by-word
न अहम् वेदैः, न तपसा, न दानेन, न च इज्यया
शक्यः एवम्-विधः द्रष्टुम् दृष्टवान् असि माम् यथा।
Commentary
God once again defines the scope of the Vedas and Vedic yajnas in this verse. Here, "yajna" refers specifically to Vedic yajnas, not in the broader sense of "any genuine spiritual pursuit" as discussed in Chapter 4. He further explains how these rare, personified forms of God can be perceived in the following verse.