If we are deviating whether to the left or to the right; whether to the left that is interpreted as the path of those inflicted with the wrath; and whether to the right that has been interpreted as the path of the astray opposite the straight path. If we traverse through this straight path; from the place where we start from, the path should be straight; it should not deviate; it should neither be eastern or western, be on the straight path; there should be no right or left involved and we move straight from here to the end, we shall be happy and shall make a nation happy. And if, God forbid, we deviate to the left or we deviate to the right then we are deviated. And if we occupy a position among the nation, we shall cause a nation to deviate.
Sahifeh-ye-Imam. V 9. P 463-464
http://en.imam-khomeini.ir/en/n8319/The-Supplication-for-the-16th-Day-of-Ramadan