This is a Surah that Men of Sound Understanding receive Admonition from

Allah says,

﴿ إِنَّ هَـٰذِهِۦ ﴾

(Verily, this) meaning, this Surah.

﴿ تَذۡڪِرَةٌ۬‌ۖ ﴾

(an admonition,) meaning, men of understanding receive admonition from it. Thus, Allah says,

﴿ فَمَن شَآءَ ٱتَّخَذَ إِلَىٰ رَبِّهِۦ سَبِيلاً ﴾

(therefore whosoever wills, let him take a path to His Lord.) meaning, from those whom Allah wills that they be guided. This is similar to the stipulation that Allah mentions in another Surah,

﴿ وَمَا تَشَآءُونَ إِلَّآ أَن يَشَآءَ ٱللَّهُ‌ۚ إِنَّ ٱللَّهَ كَانَ عَلِيمًا حَكِيمً۬ا ﴾

(But you cannot will, unless Allah wills. Verily Allah is Ever All-Knowing, Al-Wise.) (76:30)