expression, ichidan verb
go to heaven; be called to heaven
A respectful, often Christian expression for dying and going to heaven. The passive form 召される (honorific for 死ぬ) adds a reverent tone.
祖母は安らかに天国に召されました。
My grandmother was peacefully called to heaven.
Fixed expression combining 天国 (heaven) + に (particle) + 召される (honorific passive of 召す, 'to summon'). The verb 召す is an honorific equivalent of 呼ぶ or 死ぬ.