It is up to you to adopt (one of) these two ways: either the straight path of humanity or the one deviating toward the left or right. To whichever side the deviation may be, it distances one from humanity. The further one goes, the more distant it becomes. Whoever deviated from the straight path gets more distant from the path, the further he goes—if he distances himself from the straight path of humanity. That is, the path the prophets came to introduce; they were assigned to introduce that path. In the Sūrah al-Fātihah [Chapter: The Opening], God, the Blessed and Exalted, said: “Show us the straight path; the path of those whom Thou hast favored;” those whom You have favored, those whom You have made affluent, those to whom You have been merciful and whom You have guided.
Sahifeh-ye-Imam. V 8. P 290
http://en.imam-khomeini.ir/en/n8312/The-Supplication-for-the-9th-Day-of-Ramadan