The Colombian midfielder stresses that the backing of the fans can help the club escape from the foot of the Premier League table.
Villa currently sit bottom of the Premier League table following Saturday’s 4-0 defeat at Everton and are without a win in 12 games since beating Bournemouth 1-0 in their season opener.
The club’s tally of five points after 13 matches is also their worst return in any of their previous top-flight campaigns and a five-point gap separates them from 17th-placed Newcastle United.
Nevertheless, Sanchez has been hugely impressed by the way the fans have backed the team over recent games and believes it can inspire Remi Garde’s men to escape the relegation zone going forward.
Speaking to AVTV, the Colombia international said: "They are part of our family. They are part of our club and we are together.
“If we win, they win. If we lose, they lose – all together. I know they are fighting with us until the end. We never know what the result will be but we know we have to be united for our club.
"It is something that is amazing [when they cheer your name]. They give us much positive energy. It gives you the will to do more.”
Villa’s next opportunity to close the gap to safety comes on Saturday when they host 13th-placed Watford and Sanchez is desperate for a positive result after the thrashing at Everton.
“They are a club that have just come up and so far things are going well for them,” he added on the Hornets. “But here at Villa Park, we have to perform. We have to win the match.
“It’s the mentality we need to have on Saturday.”
Sanchez, meanwhile, has made 45 total appearances for Villa since signing from Spanish side Elche in August 2014 for a reported £4.7 million fee, having impressed during Colombia’s run to the World Cup quarter-finals in Brazil.
The 29-year-old holding midfielder has since struggled for consistency in England, however, and failed to hold down a regular place in the line-up under either Paul Lambert or predecessor Tim Sherwood.
Things could be about to change under new manager Garde, though, as the Frenchman has stressed that the 62-times capped veteran will be vital to his side going forward because of the defensive qualities he offers in the centre of the park.
The former Lyon boss’ first match in charge against Manchester City earlier this month saw Sanchez put in an impressive shift from the start in a 0-0 home draw, and while he began the Everton clash on the bench after returning late from international duty, his half-time introduction helped the visitors shore things up after going 3-0 down inside 42 minutes.