As long as, if only, providing that.
Verb-casual + さえ + ば, い-Adjective + さえ + いい, な-Adjective + さえ + いい, Noun + さえ + いい
The ～さえ～ば grammar point is used to express the condition that as long as one thing happens, something else will be possible or true. It emphasizes the importance of the condition and can often be translated as 'if only' or 'providing that' in English. The formation depends on whether it is used with a verb, い-adjective, な-adjective, or noun.