Keyword optimization is good for SEO. Do keyword analysis through Google Keyword Planning and then implement the keywords in title, heading, anchor text, alt text, meta tags, content, signatures etc.
You must practice search engine keyword optimization to:
Drive qualified traffic to your website: To drive searchers to your site, you must optimize for the keywords they're searching for
Measure traffic potential: Analyzing the popularity of keywords helps you gauge the size of a potential online market.
Write effective content: By incorporating optimized keywords into your website content, you can connect instantly with potential customers and address their needs.
Understand user behavior: By analyzing the words that your customers use, you get an idea of their needs and how to service those needs.
Search keyword through google keyword planner and put the title,description ,alt,meta tags etc.Relevant keywords generate genuine traffic.All SEO is stand on relevant keywords.