BG 4.1/2/3

 Here are Bhagavad Gita Chapter 4, verses 1–3 (4.1–4.3). I’ll give the Sanskrit slokas and a simple meaning.

Bhagavad Gita 4.1

श्रीभगवानुवाच
इमं विवस्वते योगं प्रोक्तवानहमव्ययम् ।
विवस्वान्मनवे प्राह मनुरिक्ष्वाकवेऽब्रवीत् ॥

Meaning (plain):
Krishna says: I taught this eternal yoga to Vivasvan (the Sun God). Vivasvan taught it to Manu, and Manu taught it to Ikshvaku.

Bhagavad Gita 4.2

एवं परम्पराप्राप्तमिमं राजर्षयो विदुः ।
स कालेनेह महता योगो नष्टः परन्तप ॥

Meaning (plain):
This knowledge was passed down through a chain of royal sages, but over a long time, that tradition was lost.

Bhagavad Gita 4.3

स एवायं मया तेऽद्य योगः प्रोक्तः पुरातनः ।
भक्तोऽसि मे सखा चेति रहस्यं ह्येतदुत्तमम् ॥

Meaning (plain):
That same ancient yoga I am now teaching you again today, because you are my devotee and friend. This is a supreme secret.

Simple takeaway of 4.1–4.3

Krishna is saying:

• This teaching is very ancient
• It was passed down but got lost over time
• He is now re-teaching it directly to Arjuna because of their special relationship

If you want, I can also explain:

• what “yoga” means in this chapter (it’s not physical yoga)
• why Krishna says it was “lost”
• or how this connects to Kriya Yoga ideas you asked about earlier