に[先立「さきだ」]って/に[先立「さきだ」]ち/に[先立「さきだ」]つ => Before A occurs/takes place N2
Time, Situation
~から...に至るまで(至るまで)      => as far as; up until; everything from ... to ~ N1
~に至る => leads to; come to a conclusion N1
Reach level
に先立って => before; prior to ~ N2
~の至り => extremely ~ N1
The highest (comparative) level
に[至「いた」]るまで => Up until A; as far as A N1
Degree/ Level/Amount
の+ [至「いた」]り => Very A N1
Degree/ Level/Amount
ちゃんとする => Serious, tidy, complete N3
Result status
がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
に至っても => even if; even though; although something reached the point ~ N1
Reach level
うちに => While... N3
どちら => Where N5
Doubt