Answer: Faith is the best option
Step-by-step explanation:
The concept that best relates to the phrase is to have faith, which means everything that a person or a community believes in. In this case, the client has a sense of certainty about the future, even though he does not know what will happen, he thinks positively, thank God. As the Bible says "faith is the certainty of what is expected, the conviction of those who do not see."