Mercury, the planet of communication, intellect, and logic, is placed in the 4th House for Aries lagna. Being in an enemy sign state might not help Mercury's natural intellect and communication skills to be at their best. However, since Mercury is also the lord of houses 3 and 6 in this placement, it takes care of its own houses by bringing some strength to their significations. House 3 indicates communication skills, courage, and younger siblings while house 6 represents enemies, diseases, debts and service. With house 3 being positively influenced by Mercury's placement it can signify that the native will excel in any field related to communication such as writing or public speaking. Overall there will be courage and enthusiasm to chase one's goals irrespective of challenges ahead despite it being weak.