Usage patterns
〈事〉の趣旨を説明するto explain the point/intent of something
At the start of the meeting, the chairperson explained the point of this proposal.
〈事〉の趣旨に沿うto be in line with the intent of something
This plan is in line with the intent of the law.
趣旨に賛同するto agree with the aim/purpose (of a proposal, campaign, etc.)
Many people agreed with the aim of this movement.
趣旨を理解するto understand the gist/point of something
He doesn't seem to understand the point of this passage yet.