伽

Left person radical - two strokes, the compressed standing-side form of 人. Carries the meaning: most uses of 伽 transliterate Sanskrit syllables tied to people or sacred figures (瑜伽 yoga, 伽蓝 saṃghārāma temple, 释迦 Śākyamuni). The radical signals the human/religious-figure context.

Right phonetic 加 - supplies the sound exactly (jiā). Originally 力 strength + 口 mouth, meaning 'to boost with words.' In 伽 the phonetic is purely sound-borrow with no meaning carry-over; this is a transliteration character used for foreign syllables. Same phonetic anchors 咖 (coffee), 茄 (eggplant), 痂 (scab), 枷 (cangue) - most are also transliteration or rare lexical uses.