Sehaj sits next to 3 phonetic neighbors — Sage, Seraj, and Sahaj are the closest matches by sound. Most share Sehaj's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"natural ease, tranquility"
"ray of light, luminous beam"
"God is gracious"
"arc, curve, arch"
"to please, gratitude"
"golden, radiant complexion"
"grace, subtlety"
"grace of the divine teacher"
"divine generosity, blessing"
"beautiful, adornment"
"celestial, brilliant"
"tender feeling, care"
"the dark one"
"built, son of (biblical)"
"moon"
"eternal, everlasting"
Similar sound: These names share phonetic patterns with Sehaj — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Punjabi origins, giving them the same cultural heritage as Sehaj.
Rhythm: Sehaj is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.