Verse 71

आनन्दे महति प्राप्ते दृष्टे वा बान्धवे चिरात् ।आनन्दम् उद्गतं ध्यात्वा तल्लयस् तन्मना भवेत्

In plain words

When great bliss has come, or a kinsman is seen after a long time, meditate on the bliss that has risen, and you become dissolved in that, with become that.