Fetching details from the dictionary...

to be involved (in); to get involved (in); to concern oneself (with); to take part (in); to interfere (in)
to relate to (a matter); to pertain to; to concern; to have to do with
to (seriously) affect; to concern; to have a serious bearing (on)
to stick (to); to adhere (to); to be particular (about)
「拘る」 has another reading with different meanings.
細部に拘りすぎると全体が見えなくなる。
If you're too fixated on details, you lose sight of the whole picture.
彼は料理に使う素材の品質に拘る人だ。
He is someone who is particular about the quality of ingredients.
過去に拘らず新しい一歩を踏み出そう。
Let's move forward without dwelling on the past.