Life is like a profound and difficult book to decipher; only by reading it with all one's heart can one grasp its true essence.
人生就像一本深奥而难以解读的书，只有全心投入阅读，才能领悟它的真正本质。
该句使用比喻结构，并通过only by引导的条件状语强调理解人生的方式。
"Life is like a boat and the world like an ocean."
"Life is but a fleeting moment, and one should live it brilliantly."
"Life is not a landscape painting; it will not always be sunny."
"Even the sweetest candy has its bitter days."
"Except for pain caused by illness or the loss of loved ones, most suffering comes from desire and comparison."